Screw Conveyor Machine

Screw conveyor in the form of transportation is divided into the shaft screw conveyor and shaftless screw conveyor two, in appearance is divided into U screw conveyor and pipe screw conveyor. The shaft screw conveyor is suitable for non dry powder material, while the shaftless screw conveyor is suitable for viscous and easy winding materials.

Working principle：

When the spiral shaft rotates, the friction material and the tank wall gravity generated by the material only in the blade push along the conveyor trough moving forward, the situation seems not rotate along the rotating nut screw for translational motion. The movement of the material in the intermediate bearing depends on the thrust of the material advancing behind it. Therefore, the conveying of materials in the conveyor is a kind of sliding movement. In order to make the spiral shaft in a more favorable tension state, the driver and discharge port are usually placed at the same end of the conveyor, and the feed port is placed near the tail of the other end as far as possible. The rotating screw blade transfers the material to the conveyor, so that the force that the material does not rotate with the screw conveyor blade is the weight of the material itself and the friction resistance of the screw conveyor casing to the material. The shape of the blade is different according to the conveying materials, such as the solid face type, the belt type surface, the blade surface type and so on. The screw shaft of the screw conveyor has a thrust bearing at the end of the material movement direction to screw the axial counterforce with the material, and the middle suspension bearing shall be added when the captain is longer.